Tension-regulating device for loom-shuttles



(No Model.)

J. T. BONNEY.

TENSION REGULATING DEVICE FOR LOOM SHUTTLES. No. 366,296. Patented July12, 1887.

awm/ NITEE STATES JAMES 'r. BONNEY, on NEW BEDFORD, MASSACHUSETTS. 1

ATEN'T TE NSION-REGU LATING DEVICE FOR LOOiVl=-SHUTTLES.

SPECIFICATION formingpart of Letters Patent NO. 366,296, dated July 12,1887.

Application filed January 22, 1887. Serial No. 225,223. (No model.)

To all whom it may concern.-

Be it known that 1', JAMEs T. BONNEY, a citizen of the United States,residing at New Bedford, in the county of Bristol and State ofMassachusetts, have invented a new and useful Improvement inTension-Regulating Devices for Loom-Shuttles, of which the following isa specification.

The object of my invention is to produce a simple, cheap, andeasily-operated device by means of which the tension on the thread fromthe shuttle may be perfectly regulated. I attain this object by thedevice illustrated in the accompanying drawings, in which Figure 1 is aside elevation of my tensionregulating device. Fig. 2 is a verticalsectional view of the same. Fig. 3 is a View of the wrench by means ofwhich the tensionregulating device is operated. Fig. 4 is a view incross-section of the shuttle and ten sion regulating device on the line00 w of Fig. 5. Fig. 5 is aside view of a portion of a shuttle, showingthe educt and the tension-regulating device and spindle in dotted lines.Fig. 6 is a top view of the tension device.

In Fig. 1 2' represents my tension-regulating device, consisting of aplug of suitable material having its top flat and its bottom preferablyrounded, and perforated vertically through its center, with the upperhalf of the perforation enlarged, and a perforation made in the centerof its side to connect with the vertical opening, as is more fully shownin the sectional View of Fig.2, and a groove formed in its side reachingnearly its entire circumference, as is fully shown in Fig. 1.

In Fig. 2 c is the perpendicular opening, and a is the opening in theside connecting therewith. a n are perforations made in the top of thedevice in order that it may be operated by the wrench, Fig. 3; and b isthe groove in the side. The tension-regulating device is seated in theshuttle, as shown in Fig. 4, which is a cross-sectional view of theshuttle through the center of the seat of the tension-regulating device.The tension-regulating device is held in its seat by means of the'boltor rivet e, which is riveted on the outside of the shuttle at g. Thetension-regulating device is seated in the shuttle in such a manner thatthe opening a shall coincide with the educt r, in order that the threadfrom the spindle may be unobstructed in its passage through them.

In Fig. 5 is shown a portion of a shuttle with the spindle andtension-regulating device in dotted lines, and the thread t protrudingfrom the educt r.

The operation of the device is as follows: When it is desired to put acertain tension on the thread, the tension-regulating device is turnedin its seat by means of the wrench in such a manner that thethread inpassing from the spindle 8 through the openings 0 and a and out throughthe educt 1 will be made to pass around agr'eater or less portion of thecircumference of the groove b. Thus it will be seen that by means ofthis simple and cheap tension-regulating device the tension on thethread from a shuttle can be perfectly regulated to any desired extent.

, Having thus described my invention, what I claim, and desire to secureby Letters Patent, 1s-

In a loom-shuttle, the combination, with the shuttle body and spindle,of the adjustable plug 2', having a central vertical opening, 0 d, sideopening, a, and groove 1), constituting a tension-regulating device, andthe bolt 6, for securing Said device in its seat, substantially as shownand described.

JAMES T. BONNEY.

Witnesses:

HENRY W. MAsoN, THos. M. JAMES.

